| /* |
| * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4017158 8180410 |
| * @library /test/lib |
| * @build jdk.test.lib.RandomFactory |
| * @run testng Write |
| * @summary Check for correct implementation of ByteArrayInputStream.write |
| * @key randomness |
| */ |
| |
| import java.io.ByteArrayOutputStream; |
| import java.util.Arrays; |
| import java.util.Random; |
| import jdk.test.lib.RandomFactory; |
| import org.testng.annotations.Test; |
| import static org.testng.Assert.*; |
| |
| public class Write { |
| private static void doBoundsTest(byte[] b, int off, int len, |
| ByteArrayOutputStream baos) |
| throws Exception { |
| if (b != null) { |
| System.out.println("ByteArrayOutStream.write: b.length = " + |
| b.length + " off = " + off + " len = " + len); |
| } else{ |
| System.out.println("ByteArrayOutStream.write: b is null off = " + |
| off + " len = " + len); |
| } |
| |
| try { |
| baos.write(b, off, len); |
| } catch (IndexOutOfBoundsException e) { |
| System.out.println("IndexOutOfBoundsException is thrown: OKAY"); |
| } catch (NullPointerException e) { |
| System.out.println("NullPointerException is thrown: OKAY"); |
| } catch (Throwable e){ |
| throw new RuntimeException("Unexpected Exception is thrown", e); |
| } |
| |
| if (b != null) { |
| System.out.println("ByteArrayOutStream.writeBytes: b.length = " + |
| b.length); |
| } else{ |
| System.out.println("ByteArrayOutStream.writeBytes: b is null"); |
| } |
| |
| try { |
| baos.writeBytes(b); |
| } catch (NullPointerException e) { |
| System.out.println("NullPointerException is thrown: OKAY"); |
| } catch (Throwable e){ |
| throw new RuntimeException("Unexpected Exception is thrown", e); |
| } |
| } |
| |
| @Test |
| public static void boundsTest() throws Exception { |
| byte array1[] = {1 , 2 , 3 , 4 , 5}; // Simple array |
| |
| //Create new ByteArrayOutputStream object |
| ByteArrayOutputStream y1 = new ByteArrayOutputStream(5); |
| |
| doBoundsTest(array1, 0, Integer.MAX_VALUE , y1); |
| doBoundsTest(array1, 0, array1.length+100, y1); |
| doBoundsTest(array1, -1, 2, y1); |
| doBoundsTest(array1, 0, -1, y1); |
| doBoundsTest(null, 0, 2, y1); |
| } |
| |
| @Test |
| public static void writeTest() throws Exception { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| Random rnd = RandomFactory.getRandom(); |
| final int size = 17 + rnd.nextInt(128); |
| |
| byte[] b = new byte[size]; |
| rnd.nextBytes(b); |
| |
| int off1 = rnd.nextInt(size / 4) + 1; |
| int len1 = Math.min(rnd.nextInt(size / 4) + 1, size - off1); |
| int off2 = rnd.nextInt(size / 2) + 1; |
| int len2 = Math.min(rnd.nextInt(size / 2) + 1, size - off2); |
| |
| System.out.format("size: %d, off1: %d, len1: %d, off2: %d, len2: %d%n", |
| size, off1, len1, off2, len2); |
| |
| baos.write(b, off1, len1); |
| byte[] b1 = baos.toByteArray(); |
| assertEquals(b1.length, len1, "Array length test 1 failed."); |
| assertEquals(b1, Arrays.copyOfRange(b, off1, off1 + len1), |
| "Array equality test 1 failed."); |
| |
| baos.write(b, off2, len2); |
| byte[] b2 = baos.toByteArray(); |
| assertEquals(b2.length, len1 + len2, "Array length test 2 failed."); |
| assertEquals(Arrays.copyOfRange(b2, 0, len1), |
| Arrays.copyOfRange(b, off1, off1 + len1), |
| "Array equality test 2A failed."); |
| assertEquals(Arrays.copyOfRange(b2, len1, len1 + len2), |
| Arrays.copyOfRange(b, off2, off2 + len2), |
| "Array equality test 2B failed."); |
| |
| baos.writeBytes(b); |
| byte[] b3 = baos.toByteArray(); |
| int len3 = len1 + len2 + b.length; |
| if (b3.length != len1 + len2 + b.length) { |
| throw new RuntimeException("Array length test 3 failed."); |
| } |
| assertEquals(b3.length, len3, "Array length test 3 failed."); |
| assertEquals(Arrays.copyOfRange(b3, 0, len1), |
| Arrays.copyOfRange(b, off1, off1 + len1), |
| "Array equality test 3A failed."); |
| assertEquals(Arrays.copyOfRange(b3, len1, len1 + len2), |
| Arrays.copyOfRange(b, off2, off2 + len2), |
| "Array equality test 3B failed."); |
| assertEquals(Arrays.copyOfRange(b3, len1 + len2, len3), b, |
| "Array equality test 3C failed."); |
| } |
| } |